FORM 1483M

09/03

Made in U.S.A.

Printed in U.S.A.

MALLORY IS A DIVISION OF THE MR. GASKET PERFORMANCE GROUP

10601 MEMPHIS AVE. #12, CLEVELAND, OH 44144

216.688.8300

FAX 216.688.8306

www.mrgasket.com

2

7. If both of these tests prove out, then the problem is

either in the distributor, crank trigger, or the wiring

is incorrect.

TESTING THE COIL

NOTE: This test should only be done on "stock type"

coils. DO NOT try this test with "CD Only" coils, such

as the Mallory 28880 or ACCEL 140019 and 140010.

This test is also helpful in testing the coil when used

with just a distributor and you are having a "No

Spark" to the plugs condition. When doing this test

you must disconnect the distributor from the coil (-)

terminal, taking it out of the loop and allowing the test

to be done properly.

1. Disconnect the wires coming from the CD box to

the coil (+ and -) terminals and connect the ignition

switch 12 volts wire to the coil (+) terminal of

the coil.

2. Connect a 24" piece of wire to the coil (-) of

the coil.

3. Pull the coil wire out of the distributor cap and get

it to where you can jump a spark to ground with it.

4. Turn the ignition to the "ON" position.

5. Rapidly tap the 24" wire to ground. This will fire the

coil. You should get a 1/4” to 3/8" spark out of the

high voltage coil wire to ground. If you do then the

coil and coil wire are good and working.

6. If no spark to ground, change out the coil wire and

do the test again. If still no spark, the coil is bad

and needs to be replaced.